Re: [Linuxptp-devel] linuxptp on ubuntu 14.04

2014-06-18 Thread Andrei Perietanu
My configuration right now is like this: two nodes plugged into a switch,
representing a small private Network. There is no firewall (so no ip tables
to turn off)
the two nodes are: 10.20.20.1(master) and 10.20.20.2(slave)...an the
wireshark capture looks like this:

559114.50748800010.20.20.2224.0.1.129PTPv286
Delay_Req Message
560114.89367700010.20.20.1224.0.1.129PTPv286
Follow_Up Message
561114.89369800010.20.20.1224.0.1.129PTPv296
Delay_Resp Message
562114.89370300010.20.20.1224.0.1.129PTPv286Sync
Message
563115.89474900010.20.20.1224.0.1.129PTPv286
Follow_Up Message
564115.89476800010.20.20.1224.0.1.129PTPv2106
Announce Message
565115.89477200010.20.20.1224.0.1.129PTPv286Sync
Message
566116.4273010.20.20.2224.0.1.129PTPv286
Delay_Req Message
567116.89486700010.20.20.1224.0.1.129PTPv286
Follow_Up Message


so messages seem  to get through, but still something seems to be wrong
since I don't see much output on the console.
Are these all the messages I should see in wireshark or are some missing?

Thanks,
Andrei


On Wed, Jun 18, 2014 at 4:35 AM, Richard Cochran richardcoch...@gmail.com
wrote:

 On Tue, Jun 17, 2014 at 08:05:59PM +, Keller, Jacob E wrote:
  The l7 output displays a bunch of much less useful output, which can
  clutter the display.

 I only suggested to run with debug logging because Andrei was
 complaining that nothing was happening.

 Now we see that both master and slave believe that they are sending
 protocol messages.

 Thanks,
 Richard


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Re: [Linuxptp-devel] linuxptp on ubuntu 14.04

2014-06-18 Thread Andrei Perietanu
correct me if I'm wrong but isn't the master supposed to send the Announce
message only once, at initialization time, and after that just send sync
and follow-up messages? I can see a lot of Announce Messages sent by the
master:

4811.00617800010.20.20.1224.0.1.129PTPv2106Announce
Message
4911.00620200010.20.20.1224.0.1.129PTPv286Sync
Message
5011.82320400010.20.20.2224.0.1.129PTPv286Delay_Req
Message
5112.00725500010.20.20.1224.0.1.129PTPv286Follow_Up
Message
5212.00727800010.20.20.1224.0.1.129PTPv296
Delay_Resp Message
5312.00728500010.20.20.1224.0.1.129PTPv286Sync
Message
5412.84942700010.20.20.2224.0.1.129PTPv286Delay_Req
Message
5513.00737500010.20.20.1224.0.1.129PTPv286Follow_Up
Message
5613.00740300010.20.20.1224.0.1.129PTPv296
Delay_Resp Message
5713.00741200010.20.20.1224.0.1.129PTPv2106Announce
Message

Announce Messages are send every 7-8 messages. Is this right?

Thanks,
Andrei


On Wed, Jun 18, 2014 at 10:52 AM, Andrei Perietanu 
andrei.periet...@klastelecom.com wrote:

 My configuration right now is like this: two nodes plugged into a switch,
 representing a small private Network. There is no firewall (so no ip tables
 to turn off)
 the two nodes are: 10.20.20.1(master) and 10.20.20.2(slave)...an the
 wireshark capture looks like this:
 
 559114.50748800010.20.20.2224.0.1.129PTPv286
 Delay_Req Message
 560114.89367700010.20.20.1224.0.1.129PTPv286
 Follow_Up Message
 561114.89369800010.20.20.1224.0.1.129PTPv296
 Delay_Resp Message
 562114.89370300010.20.20.1224.0.1.129PTPv286Sync
 Message
 563115.89474900010.20.20.1224.0.1.129PTPv286
 Follow_Up Message
 564115.89476800010.20.20.1224.0.1.129PTPv2106
 Announce Message
 565115.89477200010.20.20.1224.0.1.129PTPv286Sync
 Message
 566116.4273010.20.20.2224.0.1.129PTPv286
 Delay_Req Message
 567116.89486700010.20.20.1224.0.1.129PTPv286
 Follow_Up Message
 

 so messages seem  to get through, but still something seems to be wrong
 since I don't see much output on the console.
 Are these all the messages I should see in wireshark or are some missing?

 Thanks,
 Andrei


 On Wed, Jun 18, 2014 at 4:35 AM, Richard Cochran richardcoch...@gmail.com
  wrote:

 On Tue, Jun 17, 2014 at 08:05:59PM +, Keller, Jacob E wrote:
  The l7 output displays a bunch of much less useful output, which can
  clutter the display.

 I only suggested to run with debug logging because Andrei was
 complaining that nothing was happening.

 Now we see that both master and slave believe that they are sending
 protocol messages.

 Thanks,
 Richard


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Re: [Linuxptp-devel] linuxptp on ubuntu 14.04

2014-06-18 Thread Richard Cochran
On Wed, Jun 18, 2014 at 12:37:46PM +0100, Andrei Perietanu wrote:
 I'm running wireshark on the master

Please try it on the slave, to see if the Sync messages are arriving.

Thanks,
Richard

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Re: [Linuxptp-devel] linuxptp on ubuntu 14.04

2014-06-18 Thread Andrei Perietanu
I tried running wireshark on both nodes and I see the exact same wireshark
output on both of them, so sync messages are being received by the slave.



On Wed, Jun 18, 2014 at 12:51 PM, Richard Cochran richardcoch...@gmail.com
wrote:

 On Wed, Jun 18, 2014 at 12:37:46PM +0100, Andrei Perietanu wrote:
  I'm running wireshark on the master

 Please try it on the slave, to see if the Sync messages are arriving.

 Thanks,
 Richard


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this in error please contact the sender and delete the material from any 
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[Linuxptp-devel] [PATCH 3/3] makefile: remove programs on clean.

2014-06-18 Thread Miroslav Lichvar
Signed-off-by: Miroslav Lichvar mlich...@redhat.com
---
 makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/makefile b/makefile
index e36835b..9ab3db1 100644
--- a/makefile
+++ b/makefile
@@ -69,7 +69,7 @@ install: $(PRG)
install -p -m 644 -t $(man8dir) $(PRG:%=%.8)
 
 clean:
-   rm -f $(OBJECTS) $(DEPEND)
+   rm -f $(OBJECTS) $(DEPEND) $(PRG)
 
 distclean: clean
rm -f $(PRG)
-- 
1.9.3


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[Linuxptp-devel] [PATCH 1/3] phc2sys: track sync offset and leap second status in each clock.

2014-06-18 Thread Miroslav Lichvar
This simplifies passing of pending leap seconds to the clocks and it
will also allow to apply leap second to other clocks than system clock
if needed in future.

Signed-off-by: Miroslav Lichvar mlich...@redhat.com
---
 phc2sys.c | 54 +++---
 1 file changed, 23 insertions(+), 31 deletions(-)

diff --git a/phc2sys.c b/phc2sys.c
index 26317dc..62a51bd 100644
--- a/phc2sys.c
+++ b/phc2sys.c
@@ -76,6 +76,8 @@ struct clock {
int dest_only;
int state;
int new_state;
+   int sync_offset;
+   int leap_set;
struct servo *servo;
enum servo_state servo_state;
char *device;
@@ -102,7 +104,6 @@ struct node {
int sync_offset;
int forced_sync_offset;
int leap;
-   int leap_set;
int kernel_leap;
struct pmc *pmc;
int pmc_ds_requested;
@@ -117,7 +118,7 @@ struct node {
 
 static int update_pmc(struct node *node, int subscribe);
 static int clock_handle_leap(struct node *node, struct clock *clock,
-int64_t offset, uint64_t ts, int do_leap);
+int64_t offset, uint64_t ts);
 static int run_pmc_get_utc_offset(struct node *node, int timeout);
 static void run_pmc_events(struct node *node);
 
@@ -389,7 +390,7 @@ static int64_t get_sync_offset(struct node *node, struct 
clock *dst)
 
if (!direction)
direction = dst-is_utc - node-master-is_utc;
-   return (int64_t)node-sync_offset * NS_PER_SEC * direction;
+   return (int64_t)dst-sync_offset * NS_PER_SEC * direction;
 }
 
 static void update_clock_stats(struct clock *clock, unsigned int max_count,
@@ -428,13 +429,12 @@ static void update_clock_stats(struct clock *clock, 
unsigned int max_count,
 }
 
 static void update_clock(struct node *node, struct clock *clock,
-int64_t offset, uint64_t ts, int64_t delay,
-int do_leap)
+int64_t offset, uint64_t ts, int64_t delay)
 {
enum servo_state state;
double ppb;
 
-   if (clock_handle_leap(node, clock, offset, ts, do_leap))
+   if (clock_handle_leap(node, clock, offset, ts))
return;
 
offset += get_sync_offset(node, clock);
@@ -513,7 +513,6 @@ static int do_pps_loop(struct node *node, struct clock 
*clock, int fd)
int64_t pps_offset, phc_offset, phc_delay;
uint64_t pps_ts, phc_ts;
clockid_t src = node-master-clkid;
-   int do_leap;
 
node-master-source_label = pps;
 
@@ -550,10 +549,9 @@ static int do_pps_loop(struct node *node, struct clock 
*clock, int fd)
pps_offset = pps_ts - phc_ts;
}
 
-   do_leap = update_pmc(node, 0);
-   if (do_leap  0)
+   if (update_pmc(node, 0)  0)
continue;
-   update_clock(node, clock, pps_offset, pps_ts, -1, do_leap);
+   update_clock(node, clock, pps_offset, pps_ts, -1);
}
close(fd);
return 0;
@@ -565,15 +563,13 @@ static int do_loop(struct node *node, int subscriptions)
struct clock *clock;
uint64_t ts;
int64_t offset, delay;
-   int do_leap;
 
interval.tv_sec = node-phc_interval;
interval.tv_nsec = (node-phc_interval - interval.tv_sec) * 1e9;
 
while (1) {
clock_nanosleep(CLOCK_MONOTONIC, 0, interval, NULL);
-   do_leap = update_pmc(node, subscriptions);
-   if (do_leap  0)
+   if (update_pmc(node, subscriptions)  0)
continue;
 
if (subscriptions) {
@@ -609,7 +605,7 @@ static int do_loop(struct node *node, int subscriptions)
  offset, ts, delay))
continue;
}
-   update_clock(node, clock, offset, ts, delay, do_leap);
+   update_clock(node, clock, offset, ts, delay);
}
}
return 0; /* unreachable */
@@ -1048,12 +1044,11 @@ static int auto_init_ports(struct node *node, int 
add_rt)
return 0;
 }
 
-/* Returns: -1 in case of error, 0 for normal sync, 1 to leap clock */
+/* Returns: -1 in case of error, 0 otherwise */
 static int update_pmc(struct node *node, int subscribe)
 {
struct timespec tp;
uint64_t ts;
-   int clock_leap;
 
if (clock_gettime(CLOCK_REALTIME, tp)) {
pr_err(failed to read clock: %m);
@@ -1070,25 +1065,18 @@ static int update_pmc(struct node *node, int subscribe)
node-pmc_last_update = ts;
}
 
-   /* Handle leap seconds. */
-
-   if (!node-leap  !node-leap_set)
-   return 0;
-
-   clock_leap = leap_second_status(ts, node-leap_set,
-   node-leap, node-sync_offset);
-   if (node-leap_set != 

[Linuxptp-devel] [PATCH 0/3] Set TAI offset of system clock

2014-06-18 Thread Miroslav Lichvar
Setting the TAI offset is useful to have correct information in the
adjtimex field and also to get correct time from CLOCK_TAI, which is
implemented by the kernel as CLOCK_REALTIME + TAI offset.

The first patch simplifies the phc2sys code a bit to make it easier
for the second patch. The third patch fixes make clean; make on
system where leap seconds are tested and the time is jumping
backwards :).

Miroslav Lichvar (3):
  phc2sys: track sync offset and leap second status in each clock.
  Set TAI offset of system clock.
  makefile: remove programs on clean.

 clock.c|   9 +
 clockadj.c |  11 +++
 clockadj.h |   6 
 makefile   |   2 +-
 phc2sys.c  | 109 +++--
 5 files changed, 83 insertions(+), 54 deletions(-)

-- 
1.9.3


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[Linuxptp-devel] [PATCH 2/3] Set TAI offset of system clock.

2014-06-18 Thread Miroslav Lichvar
When synchronizing the system clock and the PTP UTC offset is valid and
traceable, set the TAI offset of the clock to have correct CLOCK_TAI
(which is implemented in the kernel as CLOCK_REALTIME + TAI offset).

Signed-off-by: Miroslav Lichvar mlich...@redhat.com
---
 clock.c|  9 
 clockadj.c | 11 ++
 clockadj.h |  6 ++
 phc2sys.c  | 69 --
 4 files changed, 66 insertions(+), 29 deletions(-)

diff --git a/clock.c b/clock.c
index 4378dec..14e20ad 100644
--- a/clock.c
+++ b/clock.c
@@ -88,6 +88,7 @@ struct clock {
int freq_est_interval;
int grand_master_capable; /* for 802.1AS only */
int utc_timescale;
+   int utc_offset_set;
int leap_set;
int kernel_leap;
int utc_offset;  /* grand master role */
@@ -700,6 +701,13 @@ static int clock_utc_correct(struct clock *c, tmv_t 
ingress)
}
}
 
+   /* Update TAI-UTC offset of the system clock if valid and traceable. */
+   if (c-tds.flags  UTC_OFF_VALID  c-tds.flags  TIME_TRACEABLE 
+   c-utc_offset_set != utc_offset  c-clkid == CLOCK_REALTIME) {
+   sysclk_set_tai_offset(utc_offset);
+   c-utc_offset_set = utc_offset;
+   }
+
if (!(c-tds.flags  PTP_TIMESCALE))
return 0;
 
@@ -789,6 +797,7 @@ struct clock *clock_create(int phc_index, struct interface 
*iface, int count,
max_adj = sysclk_max_freq();
sysclk_set_leap(0);
}
+   c-utc_offset_set = 0;
c-leap_set = 0;
c-time_flags = c-utc_timescale ? 0 : PTP_TIMESCALE;
 
diff --git a/clockadj.c b/clockadj.c
index fbf9423..5eb7cce 100644
--- a/clockadj.c
+++ b/clockadj.c
@@ -129,6 +129,17 @@ void sysclk_set_leap(int leap)
realtime_leap_bit = tx.status;
 }
 
+void sysclk_set_tai_offset(int offset)
+{
+   clockid_t clkid = CLOCK_REALTIME;
+   struct timex tx;
+   memset(tx, 0, sizeof(tx));
+   tx.modes = ADJ_TAI;
+   tx.constant = offset;
+   if (clock_adjtime(clkid, tx)  0)
+   pr_err(failed to set TAI offset: %m);
+}
+
 int sysclk_max_freq(void)
 {
clockid_t clkid = CLOCK_REALTIME;
diff --git a/clockadj.h b/clockadj.h
index 7578e84..492418e 100644
--- a/clockadj.h
+++ b/clockadj.h
@@ -58,6 +58,12 @@ void clockadj_step(clockid_t clkid, int64_t step);
 void sysclk_set_leap(int leap);
 
 /**
+ * Set the TAI offset of the system clock to have correct CLOCK_TAI.
+ * @param offset The TAI-UTC offset in seconds.
+ */
+void sysclk_set_tai_offset(int offset);
+
+/**
  * Read maximum frequency adjustment of the system clock (CLOCK_REALTIME).
  * @return The maximum frequency adjustment in parts per billion (ppb).
  */
diff --git a/phc2sys.c b/phc2sys.c
index 62a51bd..e063372 100644
--- a/phc2sys.c
+++ b/phc2sys.c
@@ -78,6 +78,7 @@ struct clock {
int new_state;
int sync_offset;
int leap_set;
+   int utc_offset_set;
struct servo *servo;
enum servo_state servo_state;
char *device;
@@ -103,6 +104,7 @@ struct node {
double phc_interval;
int sync_offset;
int forced_sync_offset;
+   int utc_offset_traceable;
int leap;
int kernel_leap;
struct pmc *pmc;
@@ -864,9 +866,12 @@ static int run_pmc_get_utc_offset(struct node *node, int 
timeout)
node-leap = -1;
else
node-leap = 0;
+   node-utc_offset_traceable = tds-flags  UTC_OFF_VALID 
+tds-flags  TIME_TRACEABLE;
} else {
node-sync_offset = 0;
node-leap = 0;
+   node-utc_offset_traceable = 0;
}
msg_put(msg);
return 1;
@@ -1076,42 +1081,48 @@ static int clock_handle_leap(struct node *node, struct 
clock *clock,
 
clock-sync_offset = node-sync_offset;
 
-   if (!node_leap  !clock-leap_set)
-   return 0;
+   if ((node_leap || clock-leap_set) 
+   clock-is_utc != node-master-is_utc) {
+   /* If the master clock is in UTC, get a time stamp from it, as
+  it is the clock which will include the leap second. */
+   if (node-master-is_utc) {
+   struct timespec tp;
+   if (clock_gettime(node-master-clkid, tp)) {
+   pr_err(failed to read clock: %m);
+   return -1;
+   }
+   ts = tp.tv_sec * NS_PER_SEC + tp.tv_nsec;
+   }
 
-   if (clock-is_utc == node-master-is_utc)
-   return 0;
+   /* If the clock will be stepped, the time stamp has to be the
+  new time. Ignore possible 1 second error in UTC offset. */
+   if (clock-is_utc  clock-servo_state == SERVO_UNLOCKED)
+   ts -= offset + 

Re: [Linuxptp-devel] [PATCH 3/3] makefile: remove programs on clean.

2014-06-18 Thread Richard Cochran
On Wed, Jun 18, 2014 at 03:44:50PM +0200, Miroslav Lichvar wrote:
  clean:
 - rm -f $(OBJECTS) $(DEPEND)
 + rm -f $(OBJECTS) $(DEPEND) $(PRG)
  
  distclean: clean
   rm -f $(PRG)

The clean target removes all the build products except for the
executables. The distclean target goes one step further and removes
the programs, too. This patch would make the distclean superfluous.

Thanks,
Richard

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Re: [Linuxptp-devel] linuxptp on ubuntu 14.04

2014-06-18 Thread Richard Cochran
On Wed, Jun 18, 2014 at 01:13:27PM +0100, Andrei Perietanu wrote:
 I tried running wireshark on both nodes and I see the exact same wireshark
 output on both of them, so sync messages are being received by the slave.

Okay, then something very strange is happening, and I can't imagine
what is going on. The one difference between wireshark and ptp4l is
that wireshark uses promiscuous mode, while ptp4l joins the multicast
group.

Here are two things to try.

1. Easy: run ptp4l with the '-2' (L2 transport) flag
2. Harder: try a vanilla kernel

Sorry,
Richard

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HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions
Find What Matters Most in Your Big Data with HPCC Systems
Open Source. Fast. Scalable. Simple. Ideal for Dirty Data.
Leverages Graph Analysis for Fast Processing  Easy Data Exploration
http://p.sf.net/sfu/hpccsystems
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